Thank you for your question.
In the hellish bygone era of analog media, the hassle of taking, developing, and disseminating photographs meant the average person only ever bothered to chronicle the most significant moments in their life. Today, we have the power to take hundreds of perfect photos each month and share them instantly.
In fact, if you do not, people will be concerned.
Social media is the bottomless photo receptacle where you must prove that you are alive—and doing very well—by posting images of yourself skiing, attending youth soccer games, cooking in your kitchen, eating in your dining room, putting your kids on the bus, flying on a plane, drinking a colorful cocktail, walking your dog, swimming with your kids in a pool, working out, standing at the base of the Eiffel Tower, and sitting in traffic.
Each time people see such photos, they will recognize that you have a fantastic life and are therefore a fantastic person. When your name comes up in conversation, they will think of you this way.
Will images of your wonderful life make them feel jealous or even inferior? Yes, but you are not responsible for their feelings of inadequacy, just as you are not responsible for your own feelings of deep satisfaction for having elicited them.
The only thing you should ever be worried about is not posting enough photos.